On Tue, Nov 25, 2014 at 06:48:11PM +0100, Cornelia Huck wrote:
> On Tue, 25 Nov 2014 18:42:01 +0200
> "Michael S. Tsirkin" <mst@xxxxxxxxxx> wrote:
>
> > set FEATURES_OK as per virtio 1.0 spec
> >
> > Signed-off-by: Michael S. Tsirkin <mst@xxxxxxxxxx>
> > ---
> > include/uapi/linux/virtio_config.h | 2 ++
> > drivers/virtio/virtio.c | 29 ++++++++++++++++++++++-------
> > 2 files changed, 24 insertions(+), 7 deletions(-)
> >
>
> > + if (virtio_has_feature(dev, VIRTIO_F_VERSION_1)) {
> > + add_status(dev, VIRTIO_CONFIG_S_FEATURES_OK);
> > + status = dev->config->get_status(dev);
> > + if (!(status & VIRTIO_CONFIG_S_FEATURES_OK)) {
> > + printk(KERN_ERR "virtio: device refuses features: %x\n",
> > + status);
>
> Can you use dev_err() to include the information which device failed?
I'm not sure - is dev_err OK to use from probe?
If yes then sure ...
I guess I'll experiment with this.
> > + err = -ENODEV;
> > + goto err;
> > + }
> > + }
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